Urine measuring vessel and hose connection

ABSTRACT

A hose connection for an arrangement for collection of liquid from a patient is disclosed which connection comprises a first tubular member ( 1 ) to be in fluid connection with the patient and having one or more protrusions ( 3 ) arranged on an outer surface, and an outlet ( 2 ), and further comprises a collection bag ( 24 ) having an inlet to be connected to the outlet for collection of liquid coming through the first tubular member. The inlet comprises a second tubular member ( 5 ) being connected to the bag and adapted to receive and surround at least a part of said first tubular member. The second tubular member has one or more receiving means ( 6, 11 ) being engageable with the protrusions for providing a locked, but separable connection between the first and second tubular member.

The present invention relates to a measuring vessel and a hoseconnection for an arrangement for collection of liquid from a patient.In particular, the connection may be used between a collection bag and avessel for measuring the volume of urine from bedridden patients.

BACKGROUND OF THE INVENTION

Measurement and collection of liquid from patients at hospitals isobtained by use of a catheter inserted into the patient, e.g. into thebladder, said catheter being connected to a measuring vessel or acollection bag for collecting the liquid.

Often the vessel or catheter is fixed connected to a collection bag,which can be emptied by use of a valve in the bottom of the bag.However, it is preferable that the bag can be replaced by a new one whenit is full instead of just emptying it. This replacement must be donemore than once a day, and it is therefore important that it can be donefairly easily for the nurse in order to reduce his/her workload and toavoid the risk of spillage. Thus, the connection between the bag to bereplaced and the other part(s) must be separable and performed withoutthe need of much energy, but it still has to be a proper connection andbe completely tight during use.

The characteristics of known hose connections are that they are eitherto loose and disconnect during use, or are too tight and very difficultto disconnect.

US 2004/0215158 discloses an in-line hose connector for a urinarycatheter. The connector has a first part with a hose barb connected tothe catheter tube and a second part with a cylindrical opening and acircumferentially extending fastening strap. A projection of the secondpart fits into a hole on the fastening strap after twisting the piecesand is so shaped as to aid in disengaging the fastening strap from theprojection and thus disconnect the parts when a tension force isexerted.

As the connector parts of US 2004/0215158 are both made of a hardplastic, an O-ring between these parts must provide the sealing.Furthermore, the construction is very complicated and expensive as itconsists of two moulded parts each having a part of a catheter tube inthe end.

Another known hose connection consists of a female tube of a bag beingslid over a male tube, the male tube having a plurality of conicalshaped protrusions with an increasing diameter so that the male tube isconnected to the female tube by means of friction provided due to theincreasing diameter. Such a connection provides a good tightening, butit is very difficult to separate without using much energy and withoutspillage, or it may even not be separable at all.

Other hose connections are disclosed in US 2002/123739, EP 0 901 778, DE298 18 311, U.S. Pat. No. 5,356,396, and U.S. Pat. No. 4,579,126.

It is an object of the present invention to provide a hose connectionbetween a collection bag and the fluid connection to the patient, whichconnection is easy to assemble and separate, simpler and thus cheaper tomanufacture, while still providing proper tightening during use.

SUMMARY OF THE INVENTION

This objective and the advantages that will become evident from thefollowing description of the invention are obtained by the followinghose connection according to a first aspect of the present invention,said hose connection for an arrangement for collection of liquid from apatient comprising;

-   -   a first tubular member to be in fluid connection with the        patient and having one or more protrusions arranged on an outer        surface said protrusions comprising a support surface (21) at        least partly formed as a ledge, and an outlet,    -   a collection bag having an inlet to be connected to said outlet        for collection of liquid coming through said first tubular        member, said inlet comprising a second tubular member being        connected to the bag and adapted to receive and surround at        least a part of said first tubular member, the second tubular        member having one or more recesses and/or edges being engageable        with said protrusions, respectively, for providing a locked, but        separable connection between the first and second tubular        member.

The second tubular member is preferably connected to the bag byadhesion, but it may be an integrated part of the bag, e.g. byin-moulding. The second tubular member can for example be a piece of aknown soft plastic hose, e.g. of PVC, which can be adhered in aprefabricated hole in the bag, thus providing a cheap construction beingeasy to manufacture. As the construction is cheap to manufacture, itallows for a disposable bag that does not need be reused but can bethrown away after use.

The protrusion(s) comprise a support surface for the recess(es) oredges, which extends substantially perpendicularly and radially out fromthe outer surface, and an inclined surface extending from the distal endof said support surface towards the outer surface. The support surfaceis at least partly formed as a ledge which supports the recess(es) whichpreferably has a corresponding surface adapted to abut on the ledge inorder to provide a safely locked connection. The ledge may besubstantially level or flat or have any other suitable configurationthat provides a rest which the corresponding recess(es) may engage withfor preventing unintended disconnection caused by tension force.

The inclined surface provides a chute along which the tubular member canslide until the recess reaches the support surface, the chute enablingan easier connection between the two tubular members. The inclinedsurface may for example be convex or concave.

Preferably, the recesses go through the sidewall of the second memberand have an outline substantially identical to the outline of theprotrusions, such as, but not limited to, half-circle formed orarrow-formed or rectangular.

The second tubular member may comprise slot(s) providing an openingchannel in the sidewall extending from an upper edge of the secondmember to the recess(es), so that the protrusions can be guided throughthe channel to obtain the engaged position in the recess(es).

The first and second tubular members may comprise two recesses andprotrusions, respectively, arranged on opposite sides of each member. Inan embodiment, the first tubular member comprises two protrusionsarranged diametrically opposite. However, the tubular members maycomprise just one or more than two recess(es) and protrusions,respectively, being evenly or unevenly distributed along the surface ofthe members.

The first tubular member is preferably substantially conical with anouter diameter (d3) near the outlet being smaller than an outer diameter(d1) upstream thereof, and an inner diameter (d4) of the second tubularmember being preferably larger than the outer diameters (d1) and (d3) ofthe first tubular member. The second tubular member is thereby easy toslide onto the first tubular member without any significant friction,but will still be locked connected to the first tubular member due tothe engagement between the recess(es) and protrusion(s).

In combination with the engagement between the recess(es) andprotrusions, a connection is provided which is easy to assemble andseparate, simple and cheap to manufacture and provides a propertightening.

In order to obtain an even better tightening, the first tubular membermay comprise an intermediate widened portion with a diameter (d2) beinglarger than (d1), (d3) and (d4). However, the diameter (d2) ispreferably not much larger than (d4) in order to obtain the easyassembling and separation without much friction. The widened portion maybe provided by a conical protrusion on the outer surface.

The diameters may for example be (d1)=11 mm, (d2)=11.4 mm, (d3)=10.8 mm,and (d4)=11.2 mm, but they can of course vary.

Preferably, the first and second tubular member have congruentcross-sectional outlines meaning that they fit smoothly into each other,and the second member preferably covers the entire outer surface of thefirst tubular member, but not necessarily.

In an embodiment, the protrusions are provided at a distal end of thefirst tubular member and are adapted to engage a distal edge of thesecond tubular member. In one embodiment, the first tubular membercomprises at least two opposite flexible leg parts each having aprotrusion (a barb) adapted to engage a distal edge of the secondtubular member, the leg parts being bendable towards each other fordisengaging the protrusions from the edge of the second tubular member.

The first and second tubular members can be connected by pushing and/orturning the second tubular member over the first tubular member untilthe protrusions engage the recesses. In the embodiment with the openingchannel as mentioned above, the second tubular member is both pushed andturned in order to guide the protrusions into the recess(es). Theprotrusions and recesses can be disengaged from each other preferably bycompressing and/or turning the second tubular member. The second tubularmember is preferably made of a soft plastic material, so that it can becompressed on two opposite sides resulting in a widening of the sidewallcontaining the recess(es), which then will disengage the protrusions onthe first tubular member.

The first and/or the second tubular members may in embodiments comprisea substantially semicircular section forming a ramp engaging with theother member for facilitating disengagement of the members by twistingthem in relation to each other. Preferably it is the second tubularmember that is twisted. The semicircular section forming a ramp ispreferably provided so as to partly encircle a part of the first tubularmember having the diameter d1 and preferably closer to the inlet end ofthe first tubular member than to the outlet end.

In embodiments the first and/or second tubular member may alternativelycomprise an annular section at least partly forming a ramp. By at leastpartly is meant that the annular section may e.g. partly comprise asubstantially semicircular section forming a ramp and partly an adjacentsemicircular section without a ramp. However, the annular section maypreferably comprise two adjacent semicircular sections provided withramps. In principle any number of sections provided with ramps maytogether form the annular section. The engaging surface on the othermember may in such embodiments be suitably adapted according to thesection(s) on the first member.

The semicircular or annular section forming a ramp may be provided on,or as, the engaging surface of the second tubular member provided thatone or more corresponding recesses are made in the outer engagingsurface part of the first tubular member.

Preferably, only one of the members is provided with a semicircular orannular section but such a section may also be provided on both members.

By providing such a ramp on either one or both members according to theinvention, it is particularly easy for a person to intentionallydisconnect the hose connection, preferably by twisting the secondtubular member in relation to the first tubular member. This is becausethe ramp on the section slides against the surface of the other memberwhich in turn causes the recess(es) on the second tubular member to bereleased from its resting position on the ledge of the first tubularmember. No excessive force will thus be necessary; the members can bereleased from each other in a comfortable manner without compromising asafe and tightly locked connection in use.

The first tubular member is preferably made of a hard plastic materialhaving a Shore A value of approx. 100, such as SAN plastic. The secondtubular member is preferably made of a soft plastic material having aShore A value of approx. 80, such as poly-vinyl-chloride.

The first tubular member may be a part of a hose/catheter connecteddirectly to an organ of a patient, or it may be a part of a measuringvessel for measuring volume of liquid, such as urine. The first tubularmember may be connected to this vessel, or it may be a fixed in-mouldedpart of said vessel defining the outlet of the vessel.

According to a second aspect, the invention relates to an arrangementfor measuring the volume of liquid from a patient, the arrangementcomprising a measuring vessel and a collection bag being connected by ahose connection according to the above described hose connection.

According to a third aspect, the invention relates to a use of anarrangement according to the second aspect for collection of urine froma patient.

According to a fourth aspect, the invention relates to a vessel formeasuring volume of liquid, in particular urine from bedridden patients.The vessel comprises a hollowed member for receiving and containing theliquid, the bottom surface of the member having a curved shape providedon each side of an intermediate part defining a central columnterminating in an outlet of the vessel.

The outlet can for example be an outlet defined by the first tubularmember according to the connection as mentioned above, so that thevessel can be coupled to the bag by a hose connection as mentioned above(see FIGS. 7 a+b).

The vessel is provided with a measuring scale indicating the volume ofliquid present therein. As the bottom surface is curved, the scale canbasically not be a linear scale, but in order to solve that, the vesselis provided with recesses or other elements taking up a predefinedvolume of the vessel, which makes it possible to use a linear scale onthe vessel. The recesses can for example be provided on the backside ofthe vessel and defines a straight horizontal bottom surface inside thevessel at a level substantially equal to the level at which the curvedsurface begins.

The curved surface of the vessel allows for a better hygiene as thereare no corners that can be difficult to access and clean from outside.Furthermore, the curved surface provides a more ergonomic vessel beingeasier to hold.

An embodiment of the vessel is shown in FIGS. 7 a-8 b.

According to a fifth aspect, the invention relates to an arrangement formeasuring and collecting body liquids, the arrangement comprising ameasuring vessel having at its top end a liquid inlet and at its lowerend a liquid outlet provided with a valve and a liquid collection bagconnected to the liquid outlet and suspended from the measuring vessel,a hollow valve body being placed in and vertically displaceable withinthe measuring vessel, and a part of the liquid outlet has the shape of avalve seat for the hollow valve body, the interior of the valve bodybeing divided into a reception chamber and an overflow chamber, saidreception chamber being connected to the liquid inlet and having at thelower end of the valve body at least one outlet opening which in theclosed position of the valve body is closed by the valve seat and whichat its upper part is connected to the measuring vessel through at leastone hole in the chamber wall, and said overflow chamber having at itslower end a duct which is directly connected to the liquid outlet of themeasuring vessel and which at its top end is connected to the measuringvessel via a hole in the chamber wall, the holes connecting thereception chamber to the measuring vessel and the measuring vessel tothe overflow chamber being placed on the same side of the hollow valvebody, and wherein the measuring vessel and collection bag is connectedby a hose connection according to the first aspect of the invention.

The arrangement is further described below with reference to FIGS. 8 a-9e.

DESCRIPTION OF THE FIGURES

Embodiments of the invention will now be described in details withreference to the accompanying figures, wherein

FIGS. 1 a-c show a first embodiment of a connection according to theinvention,

FIGS. 2 a-c show a second embodiment of a connection according to theinvention,

FIGS. 3 a-c show a third embodiment of a connection according to theinvention,

FIGS. 4 a-c show a fourth embodiment of a connection according to theinvention,

FIGS. 5 a-c show a fifth embodiment of a connection according to theinvention,

FIG. 6 shows a cross sectional view of a first tubular member accordingto the invention,

FIGS. 7 a-b show a vessel according to the invention,

FIG. 7 c shows a vessel and a collection bag connected by a hoseconnection according to the invention,

FIG. 8 a-b show the vessel of FIGS. 7 a-c more in detail,

FIG. 9 a-e show sectional views of the valve body of the vesselaccording to the invention, and

FIG. 10 a-c show schematic, perspective views of a first tubular memberhaving a semicircular section provided with a ramp according to theinvention.

FIGS. 1 a-c show a first embodiment of a connection comprising a firsttubular member 1 defining an outlet 2 and having two oppositely arrangedprotrusions 3 provided on its outer surface. The first tubular member 1forms part of a bottom part 4 of e.g. a vessel. A second tubular member5 is adapted to be connected to the first tubular member 1 by sliding itover the first tubular member 1 so that the two oppositely arrangedrecesses 6 engage with the respective protrusion 3 as shown in FIG. 1 b.

In order to separate the connection, the second tubular member 5 isturned and subsequently drawn downwards as shown in FIG. 1 c so that theprotrusions 3 disengage from the recesses 6.

As the second member 5 is preferably made of a soft plastic material, itmay be compressed on the two sides opposite to the sides where therecesses 6 are provided, so that the sides comprising the recesses arewidened and can disengage from the protrusions 3.

The protrusion 3 comprises an upper support surface at least partlyformed as a ledge supporting a corresponding support surface of therecesses 6 of the second tubular member, so that the second tubularmember 5 is positioned in a locked but separable connection with thefirst tubular member, as best shown in FIG. 1 b. The support surfaceextends perpendicularly and radially out from the first tubular memberthereby constituting the ledge. This ensures that the second tubularmember does not come off by accident, as the support surface of therecess rest on the ledge of the protrusion 3. By use of this connection,it is easy to connect the two tubular members with each other withoutmuch energy needed, while still obtaining a safe locked connection dueto the protrusions 3 and recesses 6. Furthermore, the connection iseasily separable, as the second tubular member just need to be twistedor turned and pulled in order to disengage the protrusions 3 from therecesses 6. In other embodiments, indicated in FIGS. 10 a-c, the easyseparation or disconnection of the members is facilitated by providingeither one, or both, of the tubular members with a ramp.

FIGS. 2 a-c show another embodiment of the connection, wherein theprotrusions 3 are formed as an arrow, the recesses 6 having acorresponding shape. The second tubular member 5 is connected to andseparated from the first tubular member 1 in a similar way as theembodiment of FIGS. 1 a-c.

The diameters d1, d2, d3 and d4 as referred to in the specificationabove are shown in FIG. 2 a.

The second tubular member 5 is slotted along the line 7 to ease themounting. FIGS. 3 a-c show another embodiment of the connection havingelongated protrusions 3 extending peripherally along the outer surfaceof the first tubular member 1. The second tubular member 5 is connectedto and separated from the first tubular member 1 in a similar way as theembodiments of FIGS. 1 a-2 c.

Recesses 8 are provided in the outer surface of the first tubular memberin order to ease the mounting, but can also be used as space forcompressing the second tubular member 5 when separating it from thefirst tubular member 1.

FIGS. 4 a-c show another embodiment of the connection according to theinvention, wherein the second tubular member 5 is slid on and finallyturned in order to connect it to the first tubular member 1. The firstmember 1 comprises a slot 9 providing an opening channel in the sidewallextending from an upper edge of the member to the recesses 3. Theprotrusions 3 are guided through the channel to obtain the engagedposition in the recesses 6. The protrusions 3 and recesses 6 havecorresponding slanting upper support surfaces for obtaining an evenbetter connection not separating by accident.

FIGS. 5 a-c show another embodiment of the connection according to theinvention, wherein the protrusions (barbs) 3 are provided at a distalend of the first tubular member 1 the protrusions 3 being adapted toengage a distal edge 11 of the second tubular member 5. The firsttubular member 1 comprises two opposite flexible leg parts 10 eachhaving a protrusion 3, the leg parts 10 being bendable towards eachother for disengaging the protrusions 3 from the edges of the secondtubular member 5. The second tubular member 5 may for example compriseprints showing where to squeeze the leg parts 10, as shown in FIG. 5 b.

Thus, the second tubular member 5 is separated from the first tubularmember 1 by squeezing the leg parts 1 towards each other and thendrawing the member 5 downwards, as shown in FIG. 5 c.

The outline of the protrusions and recesses shown in FIGS. 1 a-5 b areexamples, which provide a proper locked separable hose connection, butother outlines may of course be used.

FIG. 6 shows a cross sectional view of a first tubular member 1according to the invention. The member 1 comprises a widened conicalportion 20 with a diameter d2 as shown in FIG. 2 a and a protrusion 3.The protrusion 3 comprises a support surface 21 for a correspondingsupport surface of the recesses of a second tubular member, the supportsurface 21 extending substantially perpendicularly and radially out fromthe outer surface 22. An inclined surface 23 extends from the distal endof said support surface 21 towards the outer surface. The supportsurface 21 is shown in the form of a substantially even or plane ledge.The inclined surface 23 eases the sliding movement of a second tubularmember over the protrusion 3 to obtain the locked but separableconnection between the ledge on the first and the corresponding recesson the second tubular member.

FIGS. 7 a-b show a front and back view of a vessel according to theinvention for measuring volume of liquid, in particular urine frombedridden patients. The vessel 100 comprises a hollowed member with aninlet 102 for receiving and containing the liquid, and wherein thebottom surface 103 has a curved shape. An outlet 104 is provided in thebottom of the vessel 100, which can be coupled to a collection bag asshown in FIG. 7 c.

The vessel 100 is provided with a measuring scale 105 indicating thevolume of liquid present therein. On the basis of a curved bottomsurface 103, the measuring scale 105 can basically not be a linearscale, but in order to solve that problem, the vessel 100 is providedwith filling elements 106 provided as recesses on its backside defininga straight horizontal bottom surface 107 at a level substantially equalto the level at which the curved surface begins. Due to the presence ofthe filling elements 106 taking up a predefined volume of the vessel andthereby compensating for the curved bottom surface 103, it is possibleto use a linear scale 105.

The curved surface 103 of the vessel 100 allows for a better hygiene asthere are no corners that can be difficult to access and clean fromoutside. Furthermore, it provides a more ergonomic vessel being easierto hold.

FIG. 7 c shows a vessel 100 and a collection bag 108 connected to eachother via the outlet 104 of the vessel and an inlet of the bag, whichmay be formed by a tubular member being adhered to the bag 108.

FIGS. 8 a-b show transparent views of the vessel of FIGS. 7 a-c in orderto see the inside of the vessel more in detail. The vessel 100 comprisesthe hollowed member for receiving and containing the liquid, and thebottom surface 103 has a curved shape provided on each side of a centralcolumn terminating in the outlet 104 of the vessel 100. The centralcolumn defines a valve body 109 for the vessel, the valve body 109 beingaxially displaceable by rotation and which at its lower end is incontact with a valve seat 110 and is closed at the top with a cover 111.The valve body 109 is described more in detail with reference to FIGS. 9a-e.

FIG. 8 b is a cross-sectional view of the vessel 100. As seen in FIG. 8b, the filling element 106 is provided as a projection moulded in theback wall of the vessel.

FIGS. 9 a-e show sectional views of a valve body 109 of the vessel 100as shown in FIGS. 7 a-c and FIGS. 8 a-b.

FIG. 9 c is a sectional view along the line of the valve body of FIG. 9a, FIG. 9 d shows the upper part of the valve body seen from the bottom,and FIG. 9 e shows the upper part of the valve body of FIG. 9 d insectional view.

The central column defines the valve body 109, which is constructed withtwo chambers; a reception chamber 112 and an overflow chamber 113. Atits lower end the reception chamber 112 is provided with two holes 114ending in a valve surface 115 which contacts the valve seat 110 in itsclosed position thus preventing liquid outflow. At the upper end of thereception chamber 112 two holes 116 are provided in the wall separatingthe chamber 112 from the surrounding vessel 100.

At its lower end the overflow chamber 113 is provided with a duct 117through which said overflow chamber 113 is in direct contact with theliquid outlet of the vessel. The liquid outlet is defined by a tubularmember so that the vessel can be connected to a collection bag 108.

At the top end of the overflow chamber 113 a hole 118 is provided in thevalve wall.

Two annular-shaped grooves 119 each comprising an O-ring (not shown) areprovided on the outside of the valve body at the lower end thereof. Anannular groove 120 comprising an O-ring (not shown) is provided.

The outside of the valve body 109 is also provided with a projection 121being inserted in a helical groove formed on the outside of the backwall of the measuring vessel 100.

The cover 111 of the valve body 109 is provided with two openings onebeing a tubular member 122 ending in an inclined surface 123 covered bya rubber flap (not shown) permitting the introduction of liquid andpreventing back flow of the same. A ventilation opening 124 is providedwhich is partially covered by support ribs 125 supporting an air filter(not shown).

The liquid passes down into the reception chamber 112 inside the valvebody 109 via the tubular member 122. In its initial (closed) positionthe valve surface 115 of the valve body 109 is in contact with the valveseat 110 and consequently no liquid is allowed to pass through the holes114. Therefore, the liquid level in the reception chamber 112 will riseand using the measuring scale 105 a (see FIG. 7 a) on the valve body109, the volume of the collected liquid may be read.

When the liquid surface has reached the level of the holes 116, theintroduction of additional liquid will start filling of the vessel 100.

The vessel is provided with an additional non-linear measuring scale 105b (see FIG. 7 a) in the lower end of the vessel with the curved bottomsurface to measure a first amount of liquid entering the vessel from thereception chamber. Due to the presence of the filling elements 106compensating for the curved bottom surface, the measuring scale goesfrom the non-linear scale 105 b to the linear scale 105.

If additional amounts of liquid are introduced the vessel 100 is alsofilled and through the hole 118 an overflow of liquid from the vessel100 in the overflow chamber 113 may occur. From here the liquid passesvia a duct 117 down through the liquid outlet 106 and into a collectionbag 108.

At this time or at any earlier desired time the reception chamber 112 aswell as the vessel 100 may be emptied by clockwise rotation of the wing126. Such rotation causes the valve body 109 to be rotated and becausethe projection 121 is located in an upwards slanting groove (not shown)the valve body 109 is lifted upwards in connection with the rotationthus removing the valve surface 115 from the valve seat 110. Hence it ispossible to empty the reception chamber quickly through the holes 114and the vessel 100 through the space between the valve surface 115 andthe valve seat 110 as liquid flows down into the collection bag 108being connected to the outlet.

FIGS. 10 a-c show embodiments of a first tubular member 1 defining anoutlet 2 and having a protrusion 3 provided on its outer surface. Thefirst tubular member 1 forms part of a bottom part 4 of e.g. a vessel asdescribed above. A semicircular section 50 partly encircles the firsttubular member shown adjacent to the bottom part 4. Section 50 forms aramp 51 having a surface for engaging with an engaging surface of thesecond tubular member (not shown), the surface being substantially levelwith the bottom part 4 at a position e.g. above the protrusion 3 and“climbing” to a level distanced from the bottom part 4 at oppositepositions of the outer surface of the first tubular member 1. Thesemicircular section can also be level with the bottom part 4 at anyother suitable position around the tubular member.

The invention claimed is:
 1. A hose connection for an arrangement forcollection of liquid from a patient comprising; a first tubular memberadapted to be in fluid connection with an organ of the patient andhaving one or more protrusions arranged on an outer surface saidprotrusions comprising a support surface at least partly formed as aledge, and an outlet; a second tubular member being connected to acollection bag having an inlet to be connected to said outlet forcollection of liquid coming through said first tubular member, thesecond tubular member being adapted to receive and surround at least apart of said first tubular member, the second tubular member having oneor more recesses or edges being engageable with said protrusions,respectively, for providing a locked separable connection between thefirst and second tubular member; wherein the first tubular memberfurther comprises a ramp positioned above the one or more protrusionsand adapted to engage with a surface on the second tubular member, theramp spirally extending around the first tubular member and toward theone or more protrusions such that rotation of the second tubular memberrelative to the first tubular member facilitates disengagement of thefirst and second tubular members.
 2. The hose connection according toclaim 1, wherein the support surface extends perpendicularly andradially out from the outer surface and wherein an inclined surfaceextends from the distal end of said support surface towards the outersurface.
 3. The hose connection according to claim 2, wherein theinclined surface has a convex form.
 4. The hose connection according toclaim 1, wherein the one or more recesses or edges goes through thesidewall of the second member and has an outline substantially identicalto the outline of the one or more protrusions.
 5. The hose connectionaccording to claim 1, wherein the first tubular member is substantiallyconical with an outer diameter (d3) near the outlet being smaller thanan outer diameter (d1) upstream thereof.
 6. The hose connectionaccording to claim 5, wherein an inner diameter (d4) of the secondtubular member is larger than the outer diameters (d1) and (d3) of thefirst tubular member.
 7. The hose connection according to claim 1,wherein the first and second tubular members are adapted to be connectedby pushing or turning the second tubular member over the first tubularmember until the protrusion(s) one or more protrusions engages therecess(es) one or more recesses or edges.
 8. The hose connectionaccording to claim 1, wherein the one or more protrusions and one ormore recesses or edges are adapted to be disengaged by compressing orturning the second tubular member.
 9. The hose connection according toclaim 1, wherein the first tubular member is made of a hard plasticmaterial.
 10. The hose connection according to claim 1, wherein thesecond tubular member is made of a soft plastic material.
 11. The hoseconnection according to claim 1, wherein the first tubular membercomprises two protrusions arranged diametrically opposite.
 12. The hoseconnection according to claim 1, wherein said ramp is at least partlyformed by a semicircular section on the first tubular member.
 13. Thehose connection according to claim 1, wherein said ramp is at leastpartly formed by an annular section on the first tubular member.